Ronduino

I need to get my feet pointed correctly with some good examples of using the SPI protocol with Arduino. I was told to include the SPI library into the sketch, though the examples I find do not include the SPI library...What is the reason for this? :-? :-?

This display has an ATMega integrated on the backside...it seems that really I'm trying to communicate from one ATMega to another. I am a bit new to the Arduino platform, and completely new to SPI. My current goal is to have the display show a time...say 10:30 . I'm thinking I need some good examples of SPI projects, if not direct advice for using this display. Thank you for your reply.

It is probably because the SPI library doesn't do very much when you look at the code in it.This is some code I wrote for addressing two MCP23S17 chips through SPI for a CNC project to control stepping motors:-